Oregon Scientific CS1500 Chainsaw Owner's manual

Category
Power chainsaws
Type
Owner's manual

This manual is also suitable for

Original Instruction Manual
Chainsaw Model CS1500-091
Manuel d’instructions original
Tronçonneuse modèle CS1500-091
Manual original de instrucciones
Motosierra modelo CS1500-091
English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
WARNING: Read and understand all safety warnings and all instructions. Failure to follow the
warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
This instruction manual contains translations of a manual drafted in English and are provided to assist those
who do not speak English as their first language. Being a technical writing, some terms may not have a like
or equivalent meaning as translated. Therefore, you should not rely on this translation, and should cross-
reference the English version, where relying on the translated instructions could result in harm to your person
or property.
Français. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
AVERTISSEMENT : Veuillez lire et comprendre tous les avertissements de sécurité et toutes
les instructions. Le non-respect des avertissements de sécurité et des instructions peut entraîner
une décharge électrique, un incendie et/ou des blessures graves.Conservez l’ensemble des
avertissements et instructions pour référence ultérieure.
Ce manuel d’instructions est une traduction d’un manuel rédigé en anglais, fournie pour aider ceux dont
l’anglais n’est pas la langue maternelle. Étant donné qu’il s’agit d’un document technique, certains termes
peuvent ne pas avoir de signification similaire ou équivalente lorsqu’ils sont traduits. Par conséquent, vous
ne devez pas vous fier à cette traduction et devriez consulter la version anglaise également, au cas où les
instructions traduites pourraient provoquer des blessures ou des dommages matériels.
Español . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
ADVERTENCIA: Lea y comprenda todas las advertencias de seguridad y las instrucciones.
La omisión en seguir estas advertencias e instrucciones podría ocasionar una descarga eléctrica,
un incendio y/o lesiones personales graves. Guarde todas las advertencias e instrucciones para
referencia futura.
Este manual de instrucciones contiene traducciones de un manual redactado en inglés y se provee para ayudar
a aquellas personas que no hablan inglés como su primer idioma. Dado que el manual es un documento técnico,
es posible que algunos términos no tengan un significado similar o equivalente al traducirlos. Por lo tanto, no
debe confiar en esta traducción y debe consultar la versión en inglés; confiar en las instrucciones traducidas
podría provocar lesiones personales o daños materiales.
4
Table of Contents
Chainsaw Model CS1500-091
©  Blount, Inc. Pricing and specifications subject to change without notice. All rights reserved. Oregon® is a registered trademark of Blount, Inc.
in the United States and/or in other countries.
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Safety Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General Power Tool Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Work Area Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Personal Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Power Tool Use and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Chainsaw Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Causes and Operator Prevention of Kickback . . . . . . . . . . . . . . . . . . . . . . .8
Kickback Safety Devices on this Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Storage, Transporting, and Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Symbols and Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chainsaw Names and Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Preparing for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
What’s in the Box?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Checking the Front Hand-Guard Position. . . . . . . . . . . . . . . . . . . . . . . . .13
Filling the Bar and Chain Oil Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Assembling the Guide Bar and Saw Chain . . . . . . . . . . . . . . . . . . . . . . . . 14
Tensioning the Saw Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operating the Chainsaw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power Cord Use and Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Cutting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Sharpening with PowerSharp®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Maintenance and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Tensioning the Saw Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Replacing a Worn Saw Chain and Sharpening Stone . . . . . . . . . . . . . . . . . . 26
Maintaining the Guide Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Replacing a Worn Guide Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Replacing a Worn Chain Tensioning Gear. . . . . . . . . . . . . . . . . . . . . . . . .28
Replacing the Drive Sprocket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Additional Maintenance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Specifications and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Warranty and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Table of Contents
5
Important Safety Information
Chainsaw Model CS1500-091
Important Safety Information
Introduction
This chainsaw is designed for occasional light-duty use. It is not designed to fell large trees
or cut large diameter logs. This chainsaw is not designed for tree service. Do not cut trees or
wooden timbers that have a diameter greater than the effective cutting length of the chainsaw,
 inches ( cm).
Safety Signal Definitions
SYMBOL SIGNAL MEANING
WARNING Indicates a potential hazard which could result in serious injury.
CAUTION Indicates a potential hazard which could seriously damage the tool or
cause minor to moderate injury.
IMPORTANT Following this instruction will increase satisfaction with the tool.
General Power Tool Safety Warnings
WARNING: Read and understand all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire,
and/or serious injury.
Save all warnings and instructions for future reference. The term “power tool” in the
warnings refers to your mains-operated (corded) power tool or battery operated (cordless)
power tool.
Work Area Safety
Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
Do not operate the power tool in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating the power tool. Distractions can
cause you to lose control.
Electrical Safety
Power tool plugs must match the outlet.
Never modify the plug in any way. Do
not use any adapter plugs with earthed
(grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of
electric shock.
Avoid body contact with earthed or
grounded surfaces, such as pipes,
radiators, ranges and refrigerators. There
is an increased risk of electric shock if your
body is earthed or grounded.
Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
Do not abuse the cord. Never use the cord
for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil,
sharp edges or moving parts. Damaged or
entangled cords increase the risk of electric
shock.
When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
6
Important Safety Information
Chainsaw Model CS1500-091
If operating a power tool in a damp
location is unavoidable, use a ground
fault circuit interrupter (GFCI) protected
supply. Use of a GFCI reduces the risk of
electric shock.
Personal Safety
Stay alert, watch what you are doing
and use common sense when operating a
power tool. Do not use a power tool while
you are tired or under the influence of
drugs, alcohol or medication. A moment of
inattention while operating power tools may
result in serious personal injury.
Use personal protective equipment.
Always wear eye protection. Protective
equipment such as dust mask, non-skid safety
shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal
injuries.
Prevent unintentional starting. Ensure
the switch is in the off-position before
connecting to power source and/or
battery pack, picking up or carrying the
tool. Carrying power tools with your finger on
the switch or energizing power tools that have
the switch on invites accidents.
Remove any adjusting key or wrench
before turning the power tool on. A wrench
or a key left attached to a rotating part of the
power tool may result in personal injury.
Do not overreach. Keep proper footing
and balance at all times (Fig. ). This
enables better control of the power tool in
unexpected situations.
Dress properly. Do not wear loose clothing
or jewelry. Keep your hair, clothing, and
gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in
moving parts.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used. Use of dust collection can reduce dust-
related hazards.
Do not let familiarity gained from
frequent use of tools allow you to become
complacent and ignore tool safety
principles. A careless action can cause
severe injury within a fraction of a second.
Power Tool Use and Care
Do not force the power tool. Use the
correct power tool for your application.
The correct power tool will do the job
better and safer at the rate for which it was
designed.
Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
Disconnect the plug from the power
source and/or the battery pack, if
detachable, from the power tool before
making any adjustments, changing
accessories or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
Store idle power tools out of the reach
of children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
Maintain power tools. Check for
misalignment or binding of moving
parts, breakage of parts and any other
condition that may affect the power tool’s
operation. If damaged, have the power
tool repaired before use. Many accidents
are caused by poorly maintained power tools.
Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
FIG. 1
7
Important Safety Information
Chainsaw Model CS1500-091
Use the power tool, accessories and
tool bits, etc. in accordance with these
instructions taking into account the
working conditions and the work to
be performed. Use of the power tool for
operations different from those intended could
result in a hazardous situation.
Keep handles and grasping surfaces
dry, clean and free from oil and grease.
Slippery handles and grasping surfaces do not
allow for safe handling and control of the tool
in unexpected situations.
Service
Have your power tool serviced by a
qualified repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
Chainsaw Safety Warnings
Keep all parts of the body away from
the saw chain when the chainsaw is
operating. Before you start the chainsaw,
make sure the saw chain is not contacting
anything. A moment of inattention while
operating chainsaws may cause entanglement
of your clothing or body with the saw chain.
Always hold the chainsaw with your right
hand on the rear handle and your left
hand on the front handle (Fig. ). Holding
the chainsaw with a reversed hand
configuration increases the risk of personal
injury and should never be done.
Hold the power tool by insulated gripping
surfaces only, because saw chain may
contact hidden wiring or its own cord.
Saw chains contacting a “live” wire may make
exposed metal parts of the power tool “live”
and could give the operator an electric shock.
Wear safety glasses and hearing
protection. Further protective equipment
for head, hands, legs, and feet is
recommended. Adequate protective clothing
will reduce personal injury by flying debris or
accidental contact with the saw chain.
Do not operate a chainsaw in a tree.
Operation of a chainsaw while up in a tree may
result in personal injury.
Always keep proper footing and operate
the chainsaw only when standing on a
fixed, secure and level surface. Slippery
or unstable surfaces may cause a loss of
balance or control of the chainsaw.
When cutting a limb that is under tension,
be alert for spring back. When the tension
in the wood fibres is released, the spring
loaded limb may strike the operator and/or
throw the chainsaw out of control.
Use extreme caution when cutting brush
and saplings. The slender material may
catch the saw chain and be whipped toward
you or pull you off balance.
Carry the chainsaw by the front handle
with the chainsaw switched off and away
from your body. When transporting or
storing the chainsaw, always fit the guide
bar cover (Fig. ). Proper handling of the
chainsaw will reduce the likelihood of
accidental contact with the moving saw chain.
FIG. 2 FIG. 3
8
Important Safety Information
Chainsaw Model CS1500-091
Follow instructions for lubricating, chain
tensioning, and changing accessories.
Improperly tensioned or lubricated chain
may either break or increase the chance of
kickback.
Keep handles dry, clean, and free of oil
and grease. Greasy, oily handles are slippery
causing loss of control.
Cut wood only. Do not use the chainsaw
for purposes not intended. For example:
do not use chainsaw for cutting plastic,
masonry, or non-wood building materials.
Use of the chainsaw for operations different
than intended could result in a hazardous
situation.
It is recommended that the first time user
should have practical instruction in the
use of the chainsaw and the recommended
protective equipment from an experienced
operator. The initial practice should be
cutting logs on a saw-horse or cradle.
Other than the wear parts identified in
this manual, the chainsaw has no user
serviceable parts.
The work piece, bar, and chain can be hot
after cutting. Wear gloves to avoid burns.
Prolonged use of power tools has been
reported to cause vascular, muscular,
and/or neurological disorders (such
as vibration white finger or Raynaud’s
syndrome), particularly when operating
the tool in cold weather. If you experience
numbness or loss of feeling in your
extremities, stop using the tool until
symptoms fade. To reduce the incidence
of vibration induced trauma, follow these
instructions:
Wear gloves and keep hands and body
warm.
Maintain a firm grip on the chainsaw,
but do not use prolonged, excessive
pressure. Let the chainsaw do the work.
Assure that the cutting system is
maintained properly.
Take frequent breaks.
The vibration in normal use can differ from the
stated values in this manual, depending on the
material being cut, maintenance of the cutting
system and other factors.
Keep the cord behind you, and know the
position of the cord at all times. Keeping
the cord behind you and knowing the position
of the cord will help minimize tripping hazards
and prevent severing of the cord with the
chainsaw.
If the cord is cut or damaged, immediately
stop using the chainsaw and disconnect
the cord from the mains. A damaged or cut
cord increases the risk of electrical shock.
When used in a wet environment use a
GFCI with a tripping current of less than
mA. Use of a GFCI reduces the risk of
electric shock.
Causes and Operator Prevention
of Kickback
Kickback may occur when the nose or tip of the
guide bar touches an object, or when the wood
closes in and pinches the saw chain in the cut.
Tip contact, in some cases, may cause a sudden
reverse reaction, kicking the guide bar up and
back towards the operator.
Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly back
towards the operator.
Either of these reactions may cause you to
lose control of the saw which could result in
serious personal injury. Do not rely exclusively
on the safety devices built into your saw. As a
chainsaw user, you should take several steps
to keep your cutting jobs free from accident and
injury.
Kickback is the result of tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper
precautions as given below:
Maintain a firm grip with thumbs and fingers
encircling the chainsaw handles, with both
hands on the saw and position your body and
arm to allow you to resist kickback forces.
Kickback forces can be controlled by the
operator if proper precautions are taken. Do
not let go of the chainsaw.
9
Important Safety Information
Chainsaw Model CS1500-091
Do not overreach and do not cut above
shoulder height. This helps prevent
unintended tip contact and enables better
control of the chainsaw in unexpected
situations.
Follow the Oregon® sharpening and
maintenance instructions for the saw chain.
Decreasing the depth gauge height can lead to
increased kickback.
Kickback Safety Devices
on this Saw
DANGER: Never modify or attempt to
disable the chain brake.
DANGER: Only use replacement bars
and chains specified by Oregon. Incorrect
replacement bars and chains may cause
chain breakage and increased risk of
kickback injury.
CHAIN BRAKE
This chainsaw comes equipped with a chain
brake, which stops both the motor and the
motion of the chain when kickback occurs
(Fig. ). The chain brake can be activated by
the forward motion of the front hand-guard as
the saw rotates backward during kickback; it
can also be activated by the inertial forces
generated from a kickback event.
CHAIN
This chainsaw comes equipped with a
saw chain that met the reduced kickback
performance requirements of the American
National Standards Institute (ANSI) and
Canadian Standards Association (CSA), ANSI
B., ISO , and CSA Z. respectively,
when tested according to the provisions of
the standards. For replacement chain, see
“Specifications and Components” in this
manual.
BAR
This saw comes equipped with a reduced
kickback guide bar that has a small radius nose.
Smaller radius noses have less potential for
kickback than a bar of the same size with a
larger nose radius.
When replacing the bar, only order the bar
listed in this manual to maintain low kickback
performance.
Storage, Transporting, and
Disposal
STORING THE CHAINSAW
Unplug the chainsaw.
Inspect the cord for cuts or damage.
Clean chainsaw thoroughly.
Install the guide bar cover.
Store in a dry place.
Keep out of reach of children or pets.
It is normal for a small amount of oil to seep
from the guide bar when the chainsaw is not
in use. To protect against seepage, install the
guide bar cover and place an absorbent pad
under the bar.
TRANSPORTING THE CHAINSAW
Tools can shift during transport. Ensure the tool
is secure and cannot fall or move into contact
with people or property.
Unplug the chainsaw.
Install the guide bar.
If desired, drain the bar and chain oil to reduce
seepage.
CHAINSAW DISPOSAL
This Oregon® product is designed and
manufactured with high quality materials
and components which can be recycled and
reused. Please dispose of this equipment in
an environmentally correct manner at a local
community waste collection/recycling center.
FIG. 4
10
Symbols and Labels
Chainsaw Model CS1500-091
Symbols and Labels
These symbols and labels appear on the chainsaw and/or in this manual.
SYMBOL NAME EXPLANATION
Class II construction Designated double insulated construction tools
Safety alert symbol Indicates that the text that follows explains a danger, warning,
or caution.
Read instructions The original instruction manual contains important safety and
operating information. Read and follow the instructions carefully.
Wear eye protection Wear eye protection when operating the chainsaw.
Wear hearing
protection Wear hearing protection when operating the chainsaw.
Wear hand protection Wear gloves when operating the chainsaw and when handling the
saw chain.
Wear head protection Wear head protection when operating the chainsaw.
Wear long pants Wear long pants when operating the chainsaw.
Wear foot protection Wear appropriate closed-toe work boots when operating the
chainsaw.
Beware of kickback Danger: Kickback can cause severe injuries.
Bar nose contact Avoid bar nose contact.
Chainsaw kickback
angle Designed for use with low kickback saw chain.
Two-handed hold Hold saw with both hands.
One-handed hold Do not hold the saw with one hand.
Do not use a ladder Never stand on a ladder when using the chainsaw.
Do not dispose Do not throw in household waste. Take to an authorised recycler.
Do not expose to rain Do not operate the chainsaw in wet conditions.
Damaged cable Inspect the power cord regularly for damage. Remove the plug
from the mains immediately if the cable is damaged or cut.
Cutting tool Cutting tool. Do not touch the chain without first deactivating the
chainsaw by unplugging it.
Trip hazard Know the location of the cord at all times.
Unplug before
maintenance Unplug before performing any maintenance.
11
Chainsaw Names and Terms
Chainsaw Model CS1500-091
Chainsaw Names and Terms
Alignment flange: The protrusion on the bar pad
that fits into the bar slot.
Automatic oiler: The system that automatically
lubricates the guide bar and saw chain.
Bar pad: The mounting pad on the powerhead that
helps ensure proper alignment of the guide bar.
Bar slot: The cut-out portion of the guide bar that
fits on to the alignment flange and mounting stud.
Bystander safety zone: A  ft ( m) circle around
the operator that must remain free from bystanders,
children and pets.
Chain brake: A device for stopping or locking the
saw chain, activated manually or non-manually when
kickback occurs.
Chain catcher: A device for retaining the saw chain if
it breaks or derails.
Chain gauge: The thickness of the saw chain drive
link, where it fits into the bar groove, indicated by the
part number stamped on the drive links.
Chain pitch: The distance between any three
consecutive rivets on the saw chain divided by two,
indicated by the part number stamped on the drive
links.
Chainsaw powerhead: A chainsaw without the saw
chain or guide bar.
Chain tensioning gear: A gear mounted on the
guide bar that adjusts saw chain tension when
rotated.
Chain tensioning ring: The ring around the side
cover release knob, that when turned, adjusts the
saw chain tension.
Drive link: The fin-shaped link of the saw chain that
fits into the groove on the guide bar.
Drive sprocket: The toothed part that drives the
saw chain.
Effective cutting length: The approximate distance
from the root of the spiked bumper to the outside
edge of the cutting link with the tensioner set to the
middle position.
Felling back cut: The final cut in a tree felling
operation made on the opposite side of the tree from
the notching undercut.
Front handle: The support handle located at or
toward the front of the chainsaw intended to be
gripped by the left hand.
Front hand-guard: A structural barrier between the
front handle of a chainsaw and the guide bar, which
also serves as an activating mechanism for the chain
brake.
Guide bar: A railed structure that supports and
guides the saw chain. Sometimes simply called the
“bar”.
Guide bar cover: The plastic cover that protects the
guide bar and saw chain when the chainsaw is not
in use.
Kickback: The rapid backward and/or upward motion
of the guide bar, occurring when the saw chain near
the top area of the nose of the guide bar contacts any
object (such as a log or branch), or when the wood
closes in and pinches the saw chain in the cut.
Low-kickback chain: A chain that complies with
the low kickback performance requirements of ANSI
B. and CSA Z..
Motor housing: The plastic cover of the chainsaw
powerhead.
Mounting stud: The threaded protrusion on the
alignment flange that extends through the bar slot.
Notching undercut: A notch cut in a tree to direct
the tree’s fall.
Rear handle: The support handle located at or
toward the rear of the saw intended to be gripped by
the right hand.
Rear hand-guard: A structural barrier at the bottom
right side of the rear handle to protect the operator in
case of rupture or derailing of the saw chain.
Reduced kickback guide bar: A guide bar with a
maximum nose radius as specified in ANSI B.
and CSA Z. and which has been demonstrated to
reduce kickback significantly.
Saw chain: A loop of chain having cutting teeth, that
cuts the wood, that is driven by the powerhead and is
supported by the guide bar. Sometimes simply called
the “chain”.
Side cover: The plastic cover on the powerhead that
covers the drive sprocket and chain tensioning gear
which is removed and installed with the side cover
release knob.
Side cover tab: The protrusion on the side cover that
fits into a slot in the powerhead. Use it to properly
align the side cover during installation.
Spiked bumper: A device fitted to the front of the
saw acting as a pivot point when in contact with a
tree or log to make cutting easier. Also known as
“bucking spikes”.
Strain relief bracket: The hook on the rear handle
to which the extension cord is looped to protect the
cord and prevent unplugging during operation.
Trigger lock-out: A movable stop that prevents the
unintentional operation of the trigger switch until
manually actuated.
Trigger switch: A device that turns the chainsaw on
and off.
Wear parts: Parts such as the saw chain and guide
bar that can wear during use and can be replaced by
the user.
12
Product Identification
Chainsaw Model CS1500-091
Product Identification
Know the Chainsaw
NOTE: See “Preparing for Use” for a list of included items.
OIL RESERVOIR CAP
FRONT HANDLE
SPIKED BUMPER
CHAIN CATCHER
REAR HANDLE
REAR HAND-GUARD
TRIGGER SWITCH
TRIGGER LOCK-OUT
OIL INSPECTION WINDOW
POWERHEAD
POWER CORD
STRAIN RELIEF BRACKET
GUIDE BAR COVER
SAW CHAIN
GUIDE BAR
CHAIN TENSIONING GEAR
SIDE COVER
RELEASE KNOB
CHAIN TENSIONING RING
SIDE COVER
MOUNTING STUD
DRIVE SPROCKET
SHARPENING STONE
POWERSHARP® LEVER
PRODUCT NAME PLATE FRONT HAND-GUARD
SIDE COVER
TAB
13
Preparing for Use
Chainsaw Model CS1500-091
Preparing for Use
DANGER: To avoid serious personal
injury, do not operate the chainsaw
without the guide bar, saw chain, and side
cover properly assembled.
WARNING: Do not attempt to operate
the chainsaw if any part is damaged or
missing.
WARNING: An electric power tool
that is plugged in can start accidentally.
Unplug the chainsaw before preparing for
use or performing maintenance.
What’s in the Box?
These items ship with the chainsaw:
Chainsaw powerhead
Saw chain and guide bar
Guide bar cover
After removing the chainsaw from the box,
inspect it carefully to ensure no damage has
occurred during shipping, and that no parts are
missing. If any parts are damaged or missing,
do not use the chainsaw. Contact Oregon® at
.. to obtain replacement parts.
Checking the Front Hand-
Guard Position
After unpacking the chainsaw, check the
position of the front hand-guard. The chainsaw
will not run with the chain brake engaged. Pull
the front hand-guard back towards the front
handle before operation (Fig. ).
Filling the Bar and
Chain Oil Reservoir
IMPORTANT: Bar and chain oil prevents
premature wear. Never operate the
chainsaw if oil is not visible in the
inspection window. Check oil level
frequently and fill as needed.
Bar and chain oil is required to properly
lubricate the guide bar and saw chain. The
chainsaw is equipped with an automatic oiler
that deposits oil on the bar and chain when
running, keeping them properly lubricated. Use
Oregon® bar and chain oil for best results. It is
specially designed to provide low friction and
faster cuts. NEVER use oil or other lubricants
that have not been specifically designed for use
on the bar and chain. This can lead to a clogged
oil system which may cause premature wear of
the bar and chain.
FRONT HAND-GUARD
IN OPERATING POSITION
FRONT HAND-GUARD
IN BRAKE POSITION
FIG. 5
14
Preparing for Use
Chainsaw Model CS1500-091
Place the chainsaw on a firm, flat surface so
that the oil cap is on top (Fig. ).
Clean any debris from the cap area.
Remove the cap.
Carefully pour the bar and chain oil into the
reservoir.
Replace the cap and make sure oil is visible in
the reservoir.
PRIMING THE OILER
WARNING: To reduce the risk of injury,
never run the chainsaw without the side
cover.
CAUTION: Keep hands, clothing, and
hair away from the drive sprocket when
priming the oiler.
If this is the first time filling the bar and chain
oil reservoir, or if the chainsaw has been stored
for a long period of time without use, prime the
oiler.
Wear gloves.
Unplug the chainsaw.
Loosen the side cover release knob slightly,
but do not remove the side cover.
Loosen the chain tensioning ring (turn it
counterclockwise) as far as it will go.
Loosen the side cover release knob and
remove the side cover.
Remove the guide bar and saw chain.
Plug in the chainsaw.
Install the side cover, then lightly tighten the
side cover release knob.
Run the chainsaw for about two minutes.
Unplug the chainsaw, remove the side cover
and check for oil on the bar pad (Fig. ).
If no oil is present on the bar pad, replace the
side cover and run for another  seconds.
When oil begins to seep from the hole, unplug
the chainsaw and replace the bar and chain as
described in “Maintaining the Guide Bar”.
If oil is not visible in the reservoir, additional bar
and chain oil is necessary.
Assembling the Guide Bar and
Saw Chain
WARNING: An electric power tool
that is plugged in can start accidentally.
Unplug the chainsaw before preparing for
use or performing maintenance.
Wear gloves.
Unplug the chainsaw.
Loosen the side cover release knob by turning
it counter clockwise, then remove the side
cover (Fig. ).
FIG. 6 FIG. 7
FIG. 8
15
Preparing for Use
Chainsaw Model CS1500-091
There is a rubber o-ring that is important to
the function of the saw. The rubber o-ring
must be in place around the pin on the
tensioner before the tensioner is screwed onto
the bar (Fig. ).
Insert the screw from the back side of the
chain tensioning gear and attach the chain
tensioning gear onto the guide bar (Fig. ).
Place the chain tensioning gear on the side
of the guide bar facing you such that the
rectangular piece does not protrude past the
edges of the guide bar and insert the screw.
Place the guide bar on the bar pad by sliding
the bar slot over the alignment flange (Fig. ),
with the mounting stud inserted through the
hole in the chain tensioning gear.
Loop the new saw chain onto the drive
sprocket so that the cutting edges of the
teeth along the top of the bar face away from
the powerhead (Fig. ).
Feed the chain into the groove of the bar and
slide the bar away from the motor to remove
slack from the chain (Fig. ).
Install the side cover, making sure the chain
catcher and side cover tab are seated in their
proper locations (Fig. ), then lightly tighten
the side cover release knob.
FIG. 9
FIG. 10
FIG. 11 BAR PAD
ALIGNMENT FLANGE
MOUNTING STUD
FIG. 12
FIG. 13
FIG. 14
16
Preparing for Use
Chainsaw Model CS1500-091
Tension the chain as described in “Tensioning
the Saw Chain” in the “Preparing for Use”
section of the manual.
IMPORTANT: The saw chain must be
properly tensioned before using. See
“Tensioning the Saw Chain” in the
“Preparing for Use” section of the
manual.
Tensioning the Saw Chain
WARNING: An electric power tool
that is plugged in can start accidentally.
Unplug the chainsaw before preparing for
use or performing maintenance.
WARNING: If the chain is still loose
when the saw is at maximum tension,
replace the chain.
IMPORTANT: Only tension the saw chain
when the chain is cool. A hot chain may
contract and damage the guide bar or
chain as it cools.
Wear gloves.
Unplug the chainsaw before tensioning.
Loosen the side cover release knob slightly,
but do not remove the side cover.
Hold up the nose of the guide bar (Fig. ) and
turn the chain tensioning ring clockwise.
Tighten the chain tensioning ring until the
lowest cutters underneath the bar solidly
contact the bar (Fig. ).
Tighten the side cover release knob.
Lightly pull on the chain. The tension is correct
when the chain snaps back after being pulled
 mm away from the guide bar.
After a short period of use, allow the chain
to cool, unplug the chainsaw and check the
tension again. Watch tension carefully for
the first half-hour of use and periodically
throughout the life of the chain readjusting as
required when the chain and bar are cool to
the touch. Never tension chain when it is hot.
Chain will stretch as a result of normal use,
however, insufficient oil, aggressive use, or
failure to perform recommended maintenance
can lead to premature stretching.
FIG. 15
FIG. 16 INCORRECT
CORRECT
17
Operating the Chainsaw
Chainsaw Model CS1500-091
Operating the Chainsaw
General Operation
DANGER: To avoid serious personal
injury, do not overreach and do not stand
on a ladder, stepstool, or any raised
position that is not fully secured. Never
cut above shoulder height.
WARNING: To reduce the risk of injury,
always wear proper boots, gloves, head,
ear, and eye protection.
GRIP
Always grip the tool with both hands. Grasp
the front handle with the left hand and the
rear handle with the right (Fig. ). Wrap the
fingers over the top of the handle with the
thumb below the handle.
FOOTING
Stand with both feet on solid ground with
weight evenly spread between them (Fig. ).
STOPPING THE CHAINSAW
Release the trigger switch to stop the
chainsaw.
STARTING THE CHAINSAW
WARNING: To reduce the risk of injury,
never defeat the interlock by taping,
wiring or tying down the trigger lock-out.
Make sure the chain brake is not engaged.
Grasp the front and rear handles firmly. Press
and hold the trigger lock-out with the thumb ().
To start the saw, squeeze the trigger switch ()
(Fig. ). There is no need to continue to press
the trigger lock-out. It will remain disengaged
until the trigger is released.
FIG. 17 GRIP WITH THUMB
BELOW HANDLE
FIG. 18
FIG. 19 (1) TRIGGER LOCK-OUT
(2) TRIGGER
SWITCH
18
Operating the Chainsaw
Chainsaw Model CS1500-091
TESTING THE CHAIN BRAKE
Make sure the chain brake is working before
using the chainsaw. To check brake operation:
Place the saw on a firm, flat surface.
Start the saw briefly.
Keep the left hand on the front handle and roll
the left wrist to move the front hand-guard
forward to manually activate the chain brake
(Fig. ).
Release the trigger switch.
A properly functioning chain brake stops the
motor and saw chain immediately. If the motor
and saw chain do not stop immediately, have
the chain brake checked at an approved service
location.
Return the front hand-guard to operating
position.
Power Cord Use and Care
SELECTING AN EXTENSION CORD
Select an extension cord that is:
Specifically labelled for outdoor use
Of a wire size (AWG) heavy enough to carry
the current the full length of the cable
according to the table below
Select the gauge of extension cord based
on the desired length and the electrical
specifications found on the product label.
These are the recommended gauges based on
the length of cord.
CORD LENGTH (FT) MIN. WIRE SIZE
0–50 14 AWG (1.5mm2)
51–100 12 AWG (3.0mm2)
Make sure the insulation is free of cracks and
that the plugs on both ends are undamaged.
USING THE STRAIN RELIEF BRACKET
It is important to use the strain relief bracket
for two reasons:
It saves wear on both the power cord and the
extension cord and their plugs.
It prevents the chainsaw from becoming
unplugged from the extension cord
accidentally.
To use the strain relief bracket, bend the
extension cord into a U-shape and put it
through the hole in the rear handle. Slide the
loop of cord over the hook and tug lightly until
snug (Fig. ).
FIG. 20
FIG. 21
19
Operating the Chainsaw
Chainsaw Model CS1500-091
Cutting
WARNING: To reduce the risk of injury,
wear proper boots, gloves, head, ear, and
eye protection.
WARNING: To reduce the risk of
electric shock, make sure the cord
insulation is intact and that the cord is in
a dry location where there is no danger of
it being cut or tripped over.
WARNING: To reduce the risk of injury,
always be sure of footing and hold the
chainsaw firmly with both hands while the
motor is running.
WARNING: To reduce the risk of injury,
plan ahead and plan multiple escape
paths before beginning work.
CAUTION: Establish a bystander safety
zone of 20 ft (6 m) prior to operation of
this equipment. Bystander safety zone is
a minimum 20 ft (6 m) circle around the
operator that must remain free from
bystanders, children and pets (Fig. 22).
Felling operations require a larger safety
zone according to the size of the tree, see
“Felling a Tree” section.
IMPORTANT: Practice cutting logs on
a sawhorse or cradle until you become
comfortable operating the saw.
To get the best performance and to operate the
saw safely, follow these instructions:
Observe all applicable national and municipal
rules and regulations for cutting.
Take frequent breaks to reduce the risk of
injury.
Before beginning to cut, make sure the saw
chain is properly tensioned and the chain is
sharp.
Saw chains are made to cut wood only. Do not
use the chainsaw to cut any other materials,
and do not allow the chain to come into contact
with dirt, stones, nails, staples, or wire. These
materials are extremely abrasive and will wear
away protective plating from the chain in a very
short time.
Sharpen or replace the saw chain if any of these
conditions occur:
The pressure required to make cuts increases
noticeably.
Wood chips coming off of the chain are very
fine or dust-like.
Do not work with a dull chain as it will increase
the effort required to cut, cause jagged cuts,
increase wear on the chainsaw and increase the
risk of kickback. Never force a dull chain to cut.
Assume the proper cutting grip and stance
in front of the wood with the saw turned off.
Press the trigger lock-out and squeeze the
trigger switch. Let the chain reach full speed
before beginning the cut.
Begin cutting by lightly pressing the guide bar
against the wood. Use only light pressure and
let the saw do the work.
Maintain a steady speed throughout the cut
releasing pressure just before the end of the
cut.
Know the location of the cord at all times to
avoid trip hazards and avoid cutting the cord.
Know the location of the tip of the bar at all
times and avoid contact with other objects.
If the saw stops suddenly when cutting,
remove the saw from the cut, then resume
cutting using lighter pressure on the work
piece.
6 m (20 ft)
FIG. 22
20
Operating the Chainsaw
Chainsaw Model CS1500-091
PRUNING
CAUTION: Falling limbs may bounce or
“spring back” after they hit the ground so
it is essential to keep the ground clear to
provide multiple retreat paths. Clear the
work area and wear head protection.
Pruning is removing dead or overgrown
branches to maintain plant health.
Plan retreat paths before beginning to cut,
and make sure there are no obstructions.
Always know how to get out of the way of
falling branches.
Make sure bystanders or helpers are a safe
distance from falling branches. Bystanders or
helpers should not stand directly in front of or
behind the operator. See Fig. .
Maintain solid footing and hold the chainsaw
firmly with both hands. Do not overreach.
Never climb a tree or ladder to reach high
limbs.
Secure any branches that might be hazardous.
Use proper auxiliary equipment.
Prune lower limbs before pruning higher ones.
Allow the saw chain to achieve full speed
before cutting.
Apply light pressure to the branch.
For long limbs (Fig. ), cut the end of the limb
first () to relieve pressure from the limb, then
prune closer to the trunk ().
Thick limbs (greater than  inch ( cm) in
diameter) can splinter or pinch the chain when
making a single cut from the top. To avoid
pinching or splintering, first make one shallow
relief cut on the bottom surface of the limb (),
then cut the limb all of the way through from
the top of the limb () to match the bottom
cut (Fig. ).
After most of the limb has been removed,
make one smooth cut near the trunk (Fig. ).
(1) (2)
FIG. 23
(1)
(2)
FIG. 24
FIG. 25
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Oregon Scientific CS1500 Chainsaw Owner's manual

Category
Power chainsaws
Type
Owner's manual
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